A Sylmar man was charged Tuesday in connection with a series of random shootings that began last Thursday, including the murder of a Pacoima man, officials from the Los Angeles County District Attorney’s Office said.

The ex-wife of the former LAPD officer accused in the revenge killings of an Irvine couple and the slaying of a Riverside policeman was reportedly “embarrassed” by their brief marriage, according to the woman’s family members.

Authorities are offering a $25,000 reward for information that helps solve a triple murder, in which a toddler was bound and gagged and left in a closet after his parents and another woman were slain, a police sergeant said Monday.